Guild Wars 2

I understand this is/was a common bug but now days I see a lot of people with stars next to their lvl and when I asked what they represented they said it was for 100% map exploration. So my guess is that the bug is fixed but I still have it, in map it says 100% but in character screen it says 98% and when I point over the map in character screen it says 97%.

Same thing for me, what we should do ?

what about WvW? what about dungeons?

Did you guys explore those?

Chantry of Secrets? Jumping puzzles?

I think the 98% and 97% can be a bug or it can be rounding error. You could be at 97.5% Map completion and the medal will round down while the character rounds up. Map completion might include all the areas in the five regions as well as the points of interest, skill challenges, hearts, and vistas while World completion only includes what is shown. Check under the explorer if you have maxed the five explorer achievements.